Author Topic: Kuda progress  (Read 132355 times)

Offline nr1freak

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Re: Kuda progress
« Reply #240 on: December 03, 2012 - 04:55:45 AM »
The valve damage is done when the engine is shut off. As the heat dissapates, the cold air is pulled into the open header
and up to the valves. With a complete exhaust, the pipes warm the air first so it becomes a non issue.

aha, that makes sense! so close cutouts before shutting off the engine!  :thumbsup:
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Offline GranCuda1970

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Re: Kuda progress
« Reply #241 on: December 03, 2012 - 05:25:13 AM »
......and let it idle for 2 to 4 min before shutting it off this should be done anyway .. cooldown cycle and will warm up the rest of the exhaust.

Offline Beck

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Re: Kuda progress
« Reply #242 on: December 03, 2012 - 07:49:46 PM »
After a bit of research online it seems that the old 'burning valves with open headers' story is pretty much an old wives tale.

And anyway, I don't see how air cold enough to do damage could travel up a set of hot full length headers in time to warp a valve before it cools naturally...
Maybe you'd have something to worry about if you lived in the Arctic and ran shorty headers.

Offline 72cudamaan

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Re: Kuda progress
« Reply #243 on: December 03, 2012 - 09:02:13 PM »
After a bit of research online it seems that the old 'burning valves with open headers' story is pretty much an old wives tale.

And anyway, I don't see how air cold enough to do damage could travel up a set of hot full length headers in time to warp a valve before it cools naturally...
Maybe you'd have something to worry about if you lived in the Arctic and ran shorty headers.

The headers cool very rapidly, and it is not a wives tale. I have seen it happen. Now, I will admit that
I have only seen it happen in my region (midwest U.S) when it was cold outside.(late fall or winter). Also, the
damage isn't done from 1 time. Both times I saw the damage, the engines were in cars that were in the process of being
built and the owners would get that "itch" to hear the motor run on several occasions.
If I cant fix it, it's broke
 
Andy  (phukker whither)

Offline hemiken

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Re: Kuda progress
« Reply #244 on: December 31, 2012 - 08:12:08 PM »
I love what you are doing on your `Cuda Aaron, it is always a pleasure to jump on and have a look at what your up to, it is like a hot rodders dream build with everything layed out methodically and in a certain procedure. Very neat in deed buddy :2thumbs:

As for valves bending when being cooled rapidly, that does not sound right at all, the heat generated inside and engine is fierce, but do not forget that the area between a cylinder and head would constantly be changing temperature with every cycle and or revolution, because the air fuel mixture coming in through the carburetor is in fact quite cool, and guys with turbos and intercoolers get a massive rush of cold air coming in that it creates massive amounts of horsepower, so i can not see how a valve could bend with a burst of cold air, Valves will bend if they hit the piston or a foreign item that made its way in an engine, and i do know that Titanium valves have a tendency to bend because of the material they are made of, but they still function with in an engine as Titanium has that tendency to do so. That's just my :2cents: have a good one guys :wave:

Keep up the great work Aaron :bigsmile:
1970 Barracuda   (O^--^===|===^--^O)
1971 Barracuda   (O O {]{]{]|[}[}[} O O)
1970 Challenger  (O O [======R/T=] O O)
1971 Challenger  (O O ===== ===== O O)
I pay homage to the best Mopars ever built.

Offline CUDA JAS

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Re: Kuda progress
« Reply #245 on: January 31, 2013 - 03:05:49 PM »
 :popcorn: :popcorn: :popcorn: :popcorn: :popcorn: :popcorn: :popcorn: :popcorn: :popcorn: :popcorn: :popcorn: :clueless: :clueless:

so any updates?
74 'cuda 360/727



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Offline 360 'CUDA

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Re: Kuda progress
« Reply #246 on: March 03, 2013 - 05:32:21 PM »

Offline Beck

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Re: Kuda progress
« Reply #247 on: March 03, 2013 - 05:56:35 PM »
Hey!
Yeah, I've been working on the car, but it's not the most exciting work, hence the lack of updates.
I'll be dipping and blasting the shell soon, and then putting panels back on it.

Here's a little of the latest work:

Finished the mounting of the brake line, fuel line, and handbrake cables. I've welded nuts on to the body to mount the various clips to.

And here's another little video of the motor:
440 open headers 02 on Vimeo


Cheers!
« Last Edit: March 03, 2013 - 06:02:26 PM by Beck »

Offline autoshopguy

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Re: Kuda progress
« Reply #248 on: March 04, 2013 - 06:35:37 PM »
O my that is some amazing and inspiring work.  I might have to take the cage Idea that's really slick how it mounts and stays removable.

Offline Beck

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Re: Kuda progress
« Reply #249 on: May 09, 2013 - 04:41:36 AM »
Been a bit slack updating this thread...

Here's what I've been up to with the project:



















Cheers!

Offline Beck

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Re: Kuda progress
« Reply #250 on: May 09, 2013 - 04:45:50 AM »
And here's a video I shot of one of the coats of paint going on the shell:

Painting timelapse on Vimeo

Offline dutch

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Re: Kuda progress
« Reply #251 on: May 09, 2013 - 05:09:15 AM »
 :wow:  that looks great Aaron!  :woohoo:    beautiful pictures and great progress too  :clapping:
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Offline 'Cuda Hunter

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Re: Kuda progress
« Reply #252 on: May 09, 2013 - 10:13:54 AM »
It's lookin good!

Any chance you could reload that video?
"All riches begin as a state of mind and you have complete control of your mind"  -- B. Lee

Offline brads70

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Re: Kuda progress
« Reply #253 on: May 09, 2013 - 11:10:21 AM »
It's lookin good!

Any chance you could reload that video?

Just click on the words below the video and it pops up in another tab. ( worked for me anyhow?)

Nice work Aaron! :2thumbs:
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline grimmey71

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Re: Kuda progress
« Reply #254 on: May 09, 2013 - 12:05:30 PM »
One tough street fightin' looking ride that's gonna be.